PSU1 Constructors KIT

So Mr S, any progress in this area (or kits in general) or are you still VAT-whacked  ?

So, just a normal "day at the office" then is it ? 

Spice Simulator whacked (better not get myself started as to why...)

Now there is a tempting morsel - enquiring minds will want to know more  

The postal insurance thing (signed for) is not so much to ensure the item reaches the destination it's more a case of confirmation that it has! I used to send things standard mail and, surprise surprise, there were several instances where the customer claimed not to have received them...... erm........ not so with "signed for" post as there is a record the customer has actually received the item. If everybody was honest and upfront 99.9% of the mail would be confirmed as received without the need for it to be signed for.

Edited by PinkFloyd - 30 Dec 2008 at 7:44pm

Hello - I'm new to this forum, but I've been a satisfied GSP customer since I acquired a Reflex Era Gold in October 2007. I would definitely be interested in the kits -  a headphone amp for my iPod, for example.

I have a couple of questions:
1. Power Supplies Could GS power supplies improve the sound from equipment that is normally powered by a switch-mode wall-wart? I can definitely hear 'hash' from my laptop when it is connected to the mains; the sound clears up on battery, but then I run out of juice before the music finishes. (Perhaps I need to choose a composer other than Mahler!) Similarly, the weakest point on some USB/Firewire soundcards seems to be the filtering between the PSU and analogue stages.

2. Balanced operation.  I've acquired a 'pro-audio' Focusrite sound card recently, which has led me to think about  balanced vs unbalanced interconnections. I recall a Chord balanced phono pre-amp which was favourably reviewed a few years ago. What are Graham's and the forum's views on balanced operation? Can a GS amp design be 'adapted' to provide a balanced signal? (After all, the signal from the cartridge is balanced you unbalance it by connecting one side to earth...)

3. I noted the very objective discussion on mains cabling, and have been following Russ Andrews' attempt to establish a causal link between mains cable design and perceived sound. I am as sceptical as most of you. However, when I installed a PowerLine network connection (which uses mains cabling to transmit Ethernet traffic), I could only make it work when the PowerLine adaptor was plugged directly into a wall socket - even 3m of exposed mains cable on a trailing adaptor would cause the ethernet connection to repeatedly drop-out. I assume that RFI picked up by the cable was the culprit. Any views?
John Walker